[GitHub] [solr-operator] benediktarnold opened a new issue #282: Allow changing the livenessPrope settings for prometheus exporter

[GitBox]

benediktarnold opened a new issue #282:
URL: https://github.com/apache/solr-operator/issues/282


   Hi!
   
   My prometheus exporter pod was constantly restarting because the liveness 
probe timed out. I've noticed a high cpu and memory usage on the exporter pod 
as well even though I'm only scraping a 3 node solr cluster. Since 
https://github.com/apache/solr-operator/pull/83 does not allow to change the 
liveness probe settings on `SolrPrometheusExporter` resources, I've deployed 
the pod manually with a much less aggressive liveness probe configuration like:
   
           livenessProbe:
             failureThreshold: 3
             httpGet:
               path: /metrics
               port: 8080
               scheme: HTTP
             initialDelaySeconds: 20
             periodSeconds: 30
             successThreshold: 1
             timeoutSeconds: 5
             
   With that setting the CPU and memory usage decreased a lot. Please see the 
attached grafana screenshot of the cpu and memory usage of the prometheus 
exporter pod. Green is the pod deployed with `SolrPrometheusExporter` and 
orange is the pod I've deployed manually with the above settings.
   
   <img width="1050" alt="Bildschirmfoto 2021-07-09 um 13 10 25" 
src="https://user-images.githubusercontent.com/178772/125071252-571caa00-e0b9-11eb-8661-e2cdb2ac48bd.png";>
   
             
   Please allow to overwrite livenessProbe settings on `SolrPrometheusExporter` 
resources.
   
   Keep up the good work and thanks very much!
   Ben


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